[Django prac][DRF with N:1 Relation] 5.

# articles > urls.py 

from django.urls import path
from . import views


urlpatterns = [
    path('articles/', views.article_list),
    path('articles/<int:article_pk>/', views.article_detail),
    path('comments/', views.comment_list),
    path('comments/<int:comment_pk>/', views.comment_detail),
    path('articles/<int:article_pk>/comments/', views.comment_create),
]

 

---

# articles > views.py 

@api_view(['POST'])
def comment_create(request, article_pk):
    # 게시글 조회
    article = Article.objects.get(pk=article_pk)
    # 사용자 입력 데이터를 받아 직렬화 진행
    serializer = CommentSerializer(data=request.data)
    # 유효성 검사
    if serializer.is_valid(raise_exception=True):
        serializer.save()
        return Response(serializer.data, status=status.HTTP_201_CREATED)

from rest_framework.response import Response
from rest_framework.decorators import api_view
from rest_framework import status
from .serializers import ArticleListSerializer, ArticleSerializer, CommentSerializer
from .models import Article, Comment

@api_view(['GET', 'POST'])
def article_list(request):
    if request.method == 'GET':
        articles = Article.objects.all()
        serializer = ArticleListSerializer(articles, many=True)
        return Response(serializer.data)

    elif request.method == 'POST':
        serializer = ArticleSerializer(data=request.data)
        if serializer.is_valid(raise_exception=True):
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        # return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

@api_view(['GET', 'DELETE', 'PUT'])
def article_detail(request, article_pk):
    article = Article.objects.get(pk=article_pk)
    if request.method == 'GET':
        serializer = ArticleSerializer(article)
        return Response(serializer.data)

    elif request.method == 'DELETE':
        article.delete()
        return Response(status=status.HTTP_204_NO_CONTENT)

    elif request.method == 'PUT':
        serializer = ArticleSerializer(
            article, data=request.data, partial=True
        )
        if serializer.is_valid(raise_exception=True):
            serializer.save()
            return Response(serializer.data, status=status.HTTP_200_OK)
        # return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

@api_view(['GET'])
def comment_list(request):
    # 전체 댓글 조회
    comments = Comment.objects.all()
    # 직렬화 진행
    serializer = CommentSerializer(comments, many=True)
    return Response(serializer.data)

@api_view(['GET'])
def comment_detail(request, comment_pk):
    # 단일 댓글 조회
    comment = Comment.objects.get(pk=comment_pk)
    # 직렬화 진행
    serializer = CommentSerializer(comment)
    return Response(serializer.data)

@api_view(['POST'])
def comment_create(request, article_pk):
    # 게시글 조회
    article = Article.objects.get(pk=article_pk)
    # 사용자 입력 데이터를 받아 직렬화 진행
    serializer = CommentSerializer(data=request.data)
    # 유효성 검사
    if serializer.is_valid(raise_exception=True):
        serializer.save()
        return Response(serializer.data, status=status.HTTP_201_CREATED)